Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
A man's beard grows fastest when he anticipates sex.
239
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
The world's shortest man measures only 21.5 inches.
73
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
The average sperm cell swims at 8 inches per hour.
4